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MF54057 - LIC-SRCB6000105-SRCB6005121-UNPRED When processing stream fi

PTF Cover Letter


PTF ( Program Temporary Fixes ) Cover letter


Order this fix

Abstract

LIC-SRCB6000105-SRCB6005121-UNPRED When processing stream fi


Pre/Co-Requisite PTF / Fix List

REQ  LICENSED      PTF/FIX  LEVEL

TYPE PROGRAM  REL  NUMBER   MIN/MAX  OPTION
---- -------- ---  -------  -------  ------
NONE



NOTICE:
-------
Application of this PTF may disable or render ineffective programs that
use system memory addresses not generated by the IBM translator,
including programs that circumvent control technology designed to limit
interactive capacity to purchased levels.  This PTF may be a prerequisite
for future PTFs.  By applying this PTF you authorize and agree to the
foregoing.

This PTF is subject to the terms of the 'IBM License Agreement for Machine
Code', the terms of which were provided in a printed document that was
delivered with the machine.

SUBJECT TO ANY WARRANTIES WHICH CAN NOT BE EXCLUDED OR EXCEPT AS EXPLICITLY
AGREED TO IN THE APPLICABLE LICENSE AGREEMENT OR AN APPLICABLE SUPPORT
AGREEMENT, IBM MAKES NO WARRANTIES OR CONDITIONS EITHER EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OR CONDITIONS OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON INFRINGEMENT,
REGARDING THE PTF.


APAR Error Description / Circumvention

-------------------------------------------------
A request was made to obtain an advisory lock on bytes within a
stream file. The lock could not be obtained immediately because
another job had the same bytes locked. This other job had
already created a deadlock situation with other byte lock
requests. The system failed with SRC B6005121. When many jobs
were in this situation, the system failed with SRC B6000105. LIC
log entries VL02000606 (the invocation work area is full) were
logged prior to system termination.

CORRECTION FOR APAR 'MA41364' :
-------------------------------
If an advisory lock on bytes in a stream file cannot be obtained
immediately because of a lock conflict, then processing is
performed by the system to determine if a deadlock situation
exists. The function that performs this processing encountered
an unexpected combination of locking data that resulted in a
recursive function looping without end. This PTF prevents the
recursive function from looping without end.

CIRCUMVENTION FOR APAR 'MA41364' :
----------------------------------
None.


Activation Instructions


None.




Special Instructions

None.


Default Instructions

THIS IS A DELAYED PTF TO BE APPLIED AT IPL TIME.



Supersedes

PTF/FIX NO(S).  APAR TITLE LINE
--------------  ------------------------------------------------------------
   MF50932      LIC-SRCB6000105-UNPRED When processing stream file lock data

Summary Information

System..............................i
Models..............................
Release.............................V7R1M0
Licensed Program...............5770999
APAR Fixed..........................View details for APAR MA41364
Superseded by:......................
Recompile...........................N
Library.............................QSYS
MRI Feature ........................NONE
Cum Level...........................C2115710


System i Support

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Document Information

Modified date:
05 October 2011